Wow! I'm just a couple of weeks ahead of you but I do remember being in tears with a fussy, tired baby that just wouldn't sleep - even though that's what she needs to do! It's easy to say, but believe that it does get better. My LO sleep habits changed, like a switch, at about 5.5 weeks.
This might be controversial, but I recommend that you not try to tackle the whole EASY thing all at once. Pick where you want to focus and try to break that area into smaller steps. Your LO may not be ready to be put in the crib and get herself to sleep. When our DD was getting used to her crib, I would stand next to her crib with her in my arms and sway side to side until she was drowsy and then set her in and actually lean over the crib and have my chest on her chest and my face on the side of her head.
I also HIGHLY recommend swaddling! It has made a huge difference with our DD. In fact, CharlotteJ posted a technique that actually keeps our little Houdini bundled up all night long.
And, the paci has been really helpful for us. I know it's controversial, but babies do have a need to suck. We figure that eventually our LO can suck her hands, but until then we'll use the paci - but later the paci may actually be cleaner than her hands.
A routine works well for our LO, and we recently introduced "White Noise". We actually bought a recording of the ocean from iTunes and burned it to a CD over and over and over again so it will last 45 minutes now. When we just played it once, she was still while it was playing (and we thought asleep), but would wake up and fuss within seconds of it ending. Now we have enough to get her through the 20 minutes.
If you haven't started cluster feeding in the evenings, I would recommend this as well. Give it a try for several days before you decide if it works for you, but we saw results the first night we tried it. We don't dreamfeed, but that works for others as well.
Good luck and, if you can, try to catch some sleep once she finally does get down. Also, you might try reading through the post entitled "6 week" that was started by cymonguk. They were having some sleep difficulties with their LO, got loads of advice, and as you read through the threads, you can see how they progressed.